int ejemplo (int i) {
   a = a +1;
}

void main(void) {
   int a, b;
   a=100;
   b = 1000;
   while (a<b) {
      if !(2*a>=b) && (a>b) {
         printf("punto medio %d\n",a);
         break;
      }
      a=-a+1;
   }

   for (i = 0; i < 4; i++) {
      a = 324;
   }
   for (int i[0] = 0; i[0] < i[3]; (i[0])++) {
      a = 324;
   }

   for (;;) {
      b = 324;
   }
}